Here are my thoughts (I apologize if I repeat the comments before me ! :)) :
- First and foremost, your items are adorable! lovely and original. No reason why you wouldn't be successful :)
I just opened shop myself, and I keep hearing three things :
1 - make your photos as good as possible!
Think about your favorite baby clothes shop, why its so good ? don't think about the products they sell - why you like it so much ? what kind of feeling you get when you shop there ? try to make your photos project the same feeling. Its not easy, but this is the tip I got from a product photographer and it really changed the way I take photographs now.
2 - make your SEO perfect!
This can be done, and its not that hard. Just try to follow the rules, and experiment a lot. I managed to make some of my products come really high on etsy searches just by changing the order of some words :)
3 - have as many products as you can!
This is something I always hear, I keep hearing about 70,80,90 products as a minimum. I really don't know the real number, but it comes from experience and I listen :) it also makes sense, as a lot of view are coming from visitors browsing inside your shop - and the more products you have the more time they will spend in your shop.
Now, apart from all of that, its all about the products you sell, right ? if they are good and unique, people will buy. but you need to gain people's trust in your shop and products - so try to write as much as possible about the product, write about your shop and about yourself. I really like to read this things.
I hope I made sense :)
Goood luck!!!